An aggregating based model order reduction method for power grids

• Published in: Integration (Amsterdam) Vol. 55; pp. 449 - 454
• Main Authors: Huang, Qicheng, Li, Xiao, Fang, Chenlei, Yang, Fan, Su, Yangfeng, Zeng, Xuan
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.09.2016
• Subjects: Aggregating based; Model order reduction; Power grid; Power grid; Aggregating based; Model order reduction
• ISSN: 0167-9260; 1872-7522
• DOI: 10.1016/j.vlsi.2016.04.010

Simulation of power girds has become increasingly computationally expensive. In this paper, we propose a Model Order Reduction (MOR) method for power grids by extending the existing Aggregating based MOR (AMOR) method. In the proposed method, besides resistors and capacitors, current sources are also aggregated to improve MOR efficiency. Moreover, pre-partition and parallelization techniques are employed to decrease reduction time. Numerical results demonstrate that compared to original circuits, the scale of power grids is greatly reduced without much loss of accuracy. The reduced-order models are especially useful in the multiple simulations of different working modes or different environment corners. •We propose a Model Order Reduction (MOR) method for power grid circuits.•We aggregate current sources to improve MOR efficiency.•Pre-partition and parallelization techniques are employed to decrease reduction time.•The scale of power grids is greatly reduced without much loss of accuracy.•The reduced-order models are especially useful in the multiple simulations of different working modes or different environment corners.